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Geology and ore deposits of the Leadville mining district, Colorado

Emmons, Samuel Franklin, 1841-1911 author.
Washington : Department of the Interior, U.S. Geological Survey, 1927. 1927

Geology and ore deposits of the Magdalena mining district, New Mexico

Loughlin, G. F. (Gerald Francis), 1880-1946 author.
Washington : United States Department of the Interior, Geological Survey, 1942. 1942

Geology and ore deposits of the Tintic mining district, Utah

Lindgren, Waldemar, 1860-1939, author.
Washington : Department of the Interior, United States Geological Survey, 1919. 1919

Guides to ore in the Leadville district, Colorado

Loughlin, G. F. (Gerald Francis), 1880-1946, author.
[Washington, D.C.] : Department of the Interior, U.S. Geological Survey, 1926. 1926

The oxidized zinc ores of Leadville, Colorado

Loughlin, G. F. (Gerald Francis), 1880-1946.
Washington : Govt. Print. Off., 1918. 1918

The oxidized zinc ores of Leadville, Colorado

Loughlin, G. F. (Gerald Francis), 1880-1946, author.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1918. 1918

Two lamprophyre dikes near Santaquin and Mount Nebo, Utah

Loughlin, G. F. (Gerald Francis), 1880-1946, author.
Washington : Department of the Interior, United States Geological Survey, 1918. 1918